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星河乐队 cover image — processing notes

Source

~/tank/Mandarin-media/semiquaver__Album_cover_of_chinese_synth-pop_album_cover_for__eeca2d51-133a-4ace-83cf-f92aaa05d26a_3.png — 1024×1024 PNG. The band photo and overall layout are kept as-is; only the two large yellow "characters" on the left vertical band were replaced (the originals were hallucinated glyphs, not readable Chinese).

Output

images/xinghe-cover.jpg — 1024×1024 JPEG, quality 88.

Method (ImageMagick 7)

  1. Sampled a clean band texture from the only large region of the magenta band that was free of glyphs and scratches: a 145×40 strip at +0+380 (just below the second original glyph).
  2. Stretched the strip to 240×40, tiled it vertically to 240×460, and composited over the original at +0+0. This covers the wide upper section of the band; the narrow lower section (y>460) is untouched and preserves the original scribbly small text.
  3. Rendered 星 and 河 with Hiragino-Sans-GB-W6 at 240pt, trimmed, then resized each glyph to 234×160 (wider than tall) to match the squat proportions of the original AI glyphs. Fill color #f0b048 (yellow-orange, sampled from the original glyph color).
  4. Composited at +5+34 and +5+208 to align with the y-positions of the originals.

Why the band patch is 240 wide

The wide upper section of the magenta band runs x=0..240, not x=0..145 as I first assumed — the original glyphs hang off the band and a first-pass patch that was only as wide as the glyphs themselves left a thin dark strip of the original band visible at the right.

Why the clean tile was tricky to find

Most "clean-looking" strips of the band contain small orange characters or scratches. Sampling a strip with even one such artifact creates a horizontal repeat band of fake glyph residue across the whole patch. The x=0..145, y=380..420 region was the largest contiguous purple area I could find.

Reproduction

The original is preserved; the work can be redone by re-rendering the chars (Hiragino Sans GB W6 → resize 234×160 → composite at +5+34 / +5+208) over a freshly sampled band patch.